Grease-cup.



F. "E. WATTS.

GREASE CUP. .APPLICATION FILED-Nov. ao, 1914'.

Patented May 25, 1915.

FRANK E. WATTS, OF DETROIT, MICHIGAN, ASSIGNOR TO HUPP MOTOR CAR COMPANY,

OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

GREASE-CUP.

Specification of Letters Patent.

Patented May 25, 1915.

Application led November 30, 1914. Serial No. 874,633.

T0 all whom it may concern.'

Be it known that I, FRANK E. Wa'i'rs, a

citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Grease-Cups, of which the following is a specification, reference being had therein to the accompanying drawings.

. The invention relates to grease cups, and consists in the novel construction, arrangement and combination of parts as will more fully hereinafter appear. p

While the invention is adapted for other structures, as it is peculiarly useful in connection with steering knuckles for automobiles or vehicles, the invention will be. described in connection with a steering knuckle, though it is not desired to limit the protection to this particular use.

In the drawings,-Figure l is a vertical section through a steering knuckle embodying the invention; Fig. 2 is a side elevation of .the grease cup; and Fig. 3 is a plan view of the follower.

A designates the front axle of an automobile, having a forked end provided withv alined bearings B and C.

D and E are bushings for the bearings B and C respectively, 'and F is a pivot pin journaled in the bushings. Rigidly connected to the pin F in the usual manner is a spindle Gr, upon which is journaled the wheel H.

In the structure illustrated the bushings D and E are provided with collars I at their inner ends, while the outer ends of the bushings are threaded to receive nuts to clamp the bushings in place in the bearings. The nut K for securing the bushing D in place is open ended and has a portion L that projects beyond the end of the bushing.

M is the grease cup which has the open end N thereof externally threaded to engage the internal threads on the portion L of the nut K. The nut K therefore performs the function of securing not only the bushing D in place, but also the grease cup M. Arranged within the grease cup is a threaded end O of a thumb-screw P which is swiveled as indicated at Q, in the upper end of the grease cup M Upon the threaded end O is a follower R.

S is a cap nut for securing the bushing E 1n place, and interposed between the nut and the bearing C is a suitable washer 'I for sealing the joint therebetween. U is a wearplate interposed between the inner end of the bushing D and the eye V ofthe spindle G, which engages the pin F, and IV is the bearing of the steering knuckle lever which is ixedly secured to the member V.

In use the hollow pin F is filled with the usual plastic lubricant and after the cup M is filled/with lubricant, lthe cup is engaged with the nut L. A portion of the lubricant within the grease cup may be discharged v from time to time into the hollow pin F by turningk the thumb-screw P.

The arrangement described not only forms a very simple manner of securing the grease cup in place, but since it is not necessary to provide a bottom for the cup, construction of the grease cup is materially simplified over the structures now in general use. Furthermore, in the particular embodiment of the invention illustrated, not only may the full length of the hollow pin as the upper end of the bushing D in effect forms a'continuation of the grease cup, the full capacity of the cup may be used.

What I claim as my invention is 1. The combination with a bearing, a bushing therein, means for securing said bushing in place, and a grease cup attached to said bushing.

2. The combination with almember to be` lubricated, of a'nut for securing said mem' ber in place, and a grease cup attached to said member.

pin.

5. The combination with bearings, of bushings therein, a hollow pin journaled in the bushings, a nut for securing one of said the F be utilized for holding lubricant, but

bushings in place, a grease cup attached to one of the bushings, and a Cep mit for securing the other bushing in piace.

6. rEhe combination with e bearing, .a biishing therein, a nut for securing the bushing in place, and a grease cup comprising a cup-shaped memberv having the IoWer end threaded to engage the threads of said'nun' e thumb-screw swlveled in the top of the 10 cup-shaped4 member and having e threade stein arranged therein, and a follower fitting the interior ofy the cup and having a. 'threaded engagement with said stem.

Inltestimony whereof I affix my signature in presence of two Witnesses.

DON T. HAsTiNes, GRANVILLE C. ALDRICH. 

